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©2018 Integrated Device Technology, Inc
September 12, 2018
8A3xxxx Family Programming Guide
ALERT_CFG.SYS_ALERT_MASK
GPIO alert enable masks (holdover, lock) for system DPLL, and loss-of-lock mask for system APLL.
TRIGGER: Writing to this byte triggers a read and activation in hardware of all the bytes of the SYS_ALERT_CFG module.
DPLL6_LOCK_MASK[4]
R/W
0
DPLL 6 lock state transition event enable mask.
If enabled, GPIO alert becomes active when dpll6_lock_state_change_sticky bit
is set.
0 = disabled
1 = enabled
DPLL5_HOLDOVER_MAS
K[3]
R/W
0
DPLL 5 holdover state transition event enable mask.
If enabled, GPIO alert becomes active when
dpll5_holdover_state_change_sticky bit is set.
0 = disabled
1 = enabled
DPLL5_LOCK_MASK[2]
R/W
0
DPLL 5 lock state transition event enable mask.
If enabled, GPIO alert becomes active when dpll5_lock_state_change_sticky bit
is set.
0 = disabled
1 = enabled
DPLL4_HOLDOVER_MAS
K[1]
R/W
0
DPLL 4 holdover state transition event enable mask.
If enabled, GPIO alert becomes active when
dpll4_holdover_state_change_sticky bit is set.
0 = disabled
1 = enabled
DPLL4_LOCK_MASK[0]
R/W
0
DPLL 4 lock state transition event enable mask.
If enabled, GPIO alert becomes active when dpll4_lock_state_change_sticky bit
is set.
0 = disabled
1 = enabled
Table 143: ALERT_CFG.SYS_ALERT_MASK Bit Field Locations and Descriptions
Offset
Address
(Hex)
ALERT_CFG.SYS_ALERT_MASK Bit Field Locations
D7
D6
D5
D4
D3
D2
D1
D0
00Ah
RESERVED[7:3]
SYS_APLL_
LOSS_LOCK
_MASK[2]
DPLL_SYS_
HOLDOVER
_MASK[1]
DPLL_SYS_
LOCK_MAS
K[0]
ALERT_CFG.DPLL7_6_5_4_ALERT_MASK Bit Field Descriptions
Bit Field Name
Field Type Default Value
Description